body{
    margin: 0;
    background-color: #eeeeee;
}
/* 公共样式 */
*{
    box-sizing: border-box;
}
ul{
    list-style: none;
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
}
.center{
    width: 950px;
    margin: 0 auto;
}
.clear{
    clear: both;
}

/* 横幅 */
#banner{
    height: 200px;
    background-image: url("./imgs/banner.jpg");
    background-size: 96% 100%;
    background-repeat: no-repeat;
    background-position-x: center;
}
#banner .logo{
    width: 80px;
    vertical-align: middle;
    margin: 10px 10px 0 30px;
}
#banner .name{
    color: white;
    font-size: 25px;
    vertical-align: middle;
}

/* 导航条 */
#nav-bg{
    width: 100%;
    min-width: 950px;
    background-image: url("./imgs/nav-bg.gif");
    background-size: cover;
}
#nav-bg ul{
    border-left: 2px solid #aaa;
    border-right: 2px solid #aaa;
}
#nav-bg li{
    float: left;
}
#nav-bg a{
    display: block;
    height: 30px;
    line-height: 30px;
    padding: 0 20px;
    color: #525252;
    overflow: hidden;
}
#nav-bg img{
    height: 100%;
}
/* :not从选择到的元素中去掉哪些标签 */
#nav-bg li:not(.zdzb):hover{
    background-image: url("./imgs/hover.png");
    background-size: 100% 100%;
}
#nav-bg li:not(.zdzb):hover a{
    color: white;
}
/* 公司介绍 */
.title{
    background-image: url("./imgs/t20.gif");
    background-size: cover;
    padding: 3px 5px 3px 20px;
    color: white;
}
.more{
    float: right;
    font-size: 14px;
}
.more a{
    color: #1e5eb5;
}
.more a:hover{
    text-decoration: underline;
}
#introduce-box{
    margin: 10px auto;
    background-color: white;
}
#introduce{
    padding: 20px;
    border: 1px solid #ddd;
}
#introduce img{
    float: left;
    margin-right: 5px;
}
#introduce p{
    font-size: 14px;
    font-family: "宋体";
    margin: 2px 0;
    text-indent: 2em;
}

/* 供应产品 */
#provider-box{
    margin: 10px auto;
    background-color: white;
}
#provider{
    padding: 20px 0 20px 20px;
    border: 1px solid #ddd;
}
#provider li{
    border: 1px solid #ddd;
    width: 162px;
    height: 260px;
    padding: 5px;
    float: left;
    margin-right: 23px;
    margin-bottom: 15px;
}
#provider li img{
    margin: 30px 0 20px 0;
}
#provider .price::before{
    content: "￥";
}
#provider .price{
    color: #f50;
    margin: 5px 0;
}
#provider a{
    color: #1e5eb5;
    font-size: 12px;
    display: -webkit-box;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
#provider a:hover{
    text-decoration: underline;
}
#provider .hun-pi{
    margin: 8px 0;
}
#details-box{
    width: 950px;
    margin: 0 auto;
}
#details{
    clear: both;
}
#left-details{
    float: left;
    width: 190px;
    /* height: 320px; */
    /* background-image: url("./imgs/48128_646277519.gif"); */
    /* background-size: 190px,320px; */
    background-color: #f5f5f5;
}
#left-details #firm-name{
    padding: 10px;
    display: inline-block;
}
#left-details #firm-name a{
    font-size: 13px;
    color: #000;
    line-height: 14px;
    
}
.b{
    vertical-align: bottom;
}
.certify-info{
    margin-top: 10px;
}
.cdetail{
    width: 100%;
    margin-top: 10px;
    font-size: 12px;
    line-height: 18px;
    display: inline-block;
    background-color: #fff;
    padding: 2px;
}
.cdetail div{
    padding: 8px;
}
#product-data{
    margin-top: 10px;
    border: 1px solid #888;
    background-color: #fff;
    text-align: center;
    font-size: 12px;
    color:#888;
}
#product-data i{
    width: 1px;
    height: 38px;
    display: inline-block;
    background-color: #aaa;
}
#product-data .a{
    margin: 5px;
    display: inline-block;
}
#but{
    background-color: #fff;
    padding: 14px 0;
    height: 54px;

}
.btn{
    width: 70px;
    height: 30px;
    text-align: center;
    padding: 7px;
    background-color: #f5f5f5;
    border: 1px solid #f5f5f5;
    display: inline-block;
}
.btn:hover{
    border: orange 1px solid;
}
#classify{
    margin-top: 10px;
}
#classify header{
    padding-left: 10px;
    background-image: url("./imgs/t20.gif");
}
#classify div{
    color: blue;
    font-size: 12px;
    padding: 5px 0 5px 10px;
    border-bottom: 1px solid #888;
}
#contact{
    height: 376px;
    margin-top: 20px;
}
#contact header{
    background-image: url("./imgs/t20.gif");
}
#firm-panorama{
    position: relative;
    width: 730px;
    height: 447px;
    border: 1px solid black;
    float: right;
    margin: 10px;
}
#firm-panorama .firm-title{
    width: 165px;
    height: 30px;
    font-size: 17px;
    margin: 20px -5px 32px 0;
    line-height: 27px;
    float: left;
    background-repeat: no-repeat;
    background-image: url("./imgs/2308226_691191268.gif");
}
#firm-panorama .firm-title .firm-img{
    position: absolute;
    display: inline-block;
    width: 136px;
    height: 100px;
}
.firm-img img{
    width: 136px;
    height: 100px;
}

.back-homepage{
    position: fixed;
    top: 30px;
    left: 10px;
    width: 45px;
    height: 45px;
    background-color: #1e5eb5;
    border-radius: 5px;
    text-align: center;
    opacity: 0.7;
}
.back-homepage span{
    margin: 0;
    line-height: 20px;
}